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Polystyrene panel insulation

Postby ClareS » Mon Oct 01, 2012 8:59 am

We are renovating an add on building which is used as a bathroom, it is built of concrete blocks. Having stripped out the old plaster board we found 80mm thick polystyrene panels used for insulation. I want to replace these, but thinking of using panels of only 40mm thick, so as to keep the room as big as possible. Will using thinner panels make a huge difference to the insulation, or am I worrying about nothing.

Any advice or comments would be most welcome.
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Simply Build It

Postby welsh brickie » Mon Oct 01, 2012 4:48 pm

there are various types of insulation that are thinner and more efficent,try googling "tri iso super 10" is another also
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Postby PanelSystems » Thu Oct 11, 2012 10:01 am

If you were to use Styroliner there would be a small reduction in thermal value with the reduced thickness, but at a like for like thickness, Styrofoam is more thermally efficient and it has the added benefit of acting as a vapour barrier.

More info can be found at but feel free to post here if you need any further help.
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